Question

Let f(x) be a continuous function defined on the interval [2, infinity)such that
f(3)=9
abs(f(x)) is less than (x^3)+5
and integrate from 3 to infinity of f(x)e^(-x/3)dx=-6
Determine the value of integral from 3 to infinity of f'(x)e^(-x/3)dx

Answer 1

use integration by parts